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Commit dd73a01a authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Christoph Hellwig
Browse files

hfsplus: fix HFSPLUS_SB calling convention 



HFSPLUS_SB doesn't return a pointer to the hfsplus-specific superblock
information like all other FOO_SB macros, but dereference the pointer in a way
that made it look like a direct struct derefence.  This only works as long
as the HFSPLUS_SB macro is used directly and prevents us from keepig a local
hfsplus_sb_info pointer.  Fix the calling convention and introduce a local
sbi variable in all functions that use it constantly.

Signed-off-by: default avatarChristoph Hellwig <hch@tuxera.com>
parent e753a621

fs/hfsplus/bitmap.c

+11 −9
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 


int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset, u32 *max)

{

	struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);

	struct page *page;

	struct address_space *mapping;

	__be32 *pptr, *curr, *end;
@@ -29,8 +30,8 @@ int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset, u32 *ma 
		return size;



	dprint(DBG_BITMAP, "block_allocate: %u,%u,%u\n", size, offset, len);

	mutex_lock(&HFSPLUS_SB(sb).alloc_mutex);

	mapping = HFSPLUS_SB(sb).alloc_file->i_mapping;

	mutex_lock(&sbi->alloc_mutex);

	mapping = sbi->alloc_file->i_mapping;

	page = read_mapping_page(mapping, offset / PAGE_CACHE_BITS, NULL);

	if (IS_ERR(page)) {

		start = size;
@@ -150,16 +151,17 @@ int hfsplus_block_allocate(struct super_block *sb, u32 size, u32 offset, u32 *ma 
	set_page_dirty(page);

	kunmap(page);

	*max = offset + (curr - pptr) * 32 + i - start;

	HFSPLUS_SB(sb).free_blocks -= *max;

	sbi->free_blocks -= *max;

	sb->s_dirt = 1;

	dprint(DBG_BITMAP, "-> %u,%u\n", start, *max);

out:

	mutex_unlock(&HFSPLUS_SB(sb).alloc_mutex);

	mutex_unlock(&sbi->alloc_mutex);

	return start;

}



int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count)

{

	struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);

	struct page *page;

	struct address_space *mapping;

	__be32 *pptr, *curr, *end;
@@ -172,11 +174,11 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count) 


	dprint(DBG_BITMAP, "block_free: %u,%u\n", offset, count);

	/* are all of the bits in range? */

	if ((offset + count) > HFSPLUS_SB(sb).total_blocks)

	if ((offset + count) > sbi->total_blocks)

		return -2;



	mutex_lock(&HFSPLUS_SB(sb).alloc_mutex);

	mapping = HFSPLUS_SB(sb).alloc_file->i_mapping;

	mutex_lock(&sbi->alloc_mutex);

	mapping = sbi->alloc_file->i_mapping;

	pnr = offset / PAGE_CACHE_BITS;

	page = read_mapping_page(mapping, pnr, NULL);

	pptr = kmap(page);
@@ -224,9 +226,9 @@ int hfsplus_block_free(struct super_block *sb, u32 offset, u32 count) 
out:

	set_page_dirty(page);

	kunmap(page);

	HFSPLUS_SB(sb).free_blocks += len;

	sbi->free_blocks += len;

	sb->s_dirt = 1;

	mutex_unlock(&HFSPLUS_SB(sb).alloc_mutex);

	mutex_unlock(&sbi->alloc_mutex);



	return 0;

}

fs/hfsplus/btree.c

+4 −4
Original line number Diff line number Diff line
@@ -61,12 +61,12 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id) 
	if (id == HFSPLUS_EXT_CNID) {

		tree->keycmp = hfsplus_ext_cmp_key;

	} else if (id == HFSPLUS_CAT_CNID) {

		if ((HFSPLUS_SB(sb).flags & HFSPLUS_SB_HFSX) &&

		if ((HFSPLUS_SB(sb)->flags & HFSPLUS_SB_HFSX) &&

		    (head->key_type == HFSPLUS_KEY_BINARY))

			tree->keycmp = hfsplus_cat_bin_cmp_key;

		else {

			tree->keycmp = hfsplus_cat_case_cmp_key;

			HFSPLUS_SB(sb).flags |= HFSPLUS_SB_CASEFOLD;

			HFSPLUS_SB(sb)->flags |= HFSPLUS_SB_CASEFOLD;

		}

	} else {

		printk(KERN_ERR "hfs: unknown B*Tree requested\n");
@@ -200,9 +200,9 @@ struct hfs_bnode *hfs_bmap_alloc(struct hfs_btree *tree) 
			return ERR_PTR(res);

		HFSPLUS_I(inode).phys_size = inode->i_size =

				(loff_t)HFSPLUS_I(inode).alloc_blocks <<

				HFSPLUS_SB(tree->sb).alloc_blksz_shift;

				HFSPLUS_SB(tree->sb)->alloc_blksz_shift;

		HFSPLUS_I(inode).fs_blocks = HFSPLUS_I(inode).alloc_blocks <<

					     HFSPLUS_SB(tree->sb).fs_shift;

					     HFSPLUS_SB(tree->sb)->fs_shift;

		inode_set_bytes(inode, inode->i_size);

		count = inode->i_size >> tree->node_size_shift;

		tree->free_nodes = count - tree->node_count;

fs/hfsplus/catalog.c

+12 −13
Original line number Diff line number Diff line
@@ -86,6 +86,8 @@ static void hfsplus_set_perms(struct inode *inode, struct hfsplus_perm *perms) 


static int hfsplus_cat_build_record(hfsplus_cat_entry *entry, u32 cnid, struct inode *inode)

{

	struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);



	if (S_ISDIR(inode->i_mode)) {

		struct hfsplus_cat_folder *folder;
@@ -99,7 +101,7 @@ static int hfsplus_cat_build_record(hfsplus_cat_entry *entry, u32 cnid, struct i 
			folder->attribute_mod_date =

			folder->access_date = hfsp_now2mt();

		hfsplus_set_perms(inode, &folder->permissions);

		if (inode == HFSPLUS_SB(inode->i_sb).hidden_dir)

		if (inode == sbi->hidden_dir)

			/* invisible and namelocked */

			folder->user_info.frFlags = cpu_to_be16(0x5000);

		return sizeof(*folder);
@@ -122,8 +124,8 @@ static int hfsplus_cat_build_record(hfsplus_cat_entry *entry, u32 cnid, struct i 
				file->user_info.fdType = cpu_to_be32(HFSP_SYMLINK_TYPE);

				file->user_info.fdCreator = cpu_to_be32(HFSP_SYMLINK_CREATOR);

			} else {

				file->user_info.fdType = cpu_to_be32(HFSPLUS_SB(inode->i_sb).type);

				file->user_info.fdCreator = cpu_to_be32(HFSPLUS_SB(inode->i_sb).creator);

				file->user_info.fdType = cpu_to_be32(sbi->type);

				file->user_info.fdCreator = cpu_to_be32(sbi->creator);

			}

			if ((file->permissions.rootflags | file->permissions.userflags) & HFSPLUS_FLG_IMMUTABLE)

				file->flags |= cpu_to_be16(HFSPLUS_FILE_LOCKED);
@@ -131,7 +133,7 @@ static int hfsplus_cat_build_record(hfsplus_cat_entry *entry, u32 cnid, struct i 
			file->user_info.fdType = cpu_to_be32(HFSP_HARDLINK_TYPE);

			file->user_info.fdCreator = cpu_to_be32(HFSP_HFSPLUS_CREATOR);

			file->user_info.fdFlags = cpu_to_be16(0x100);

			file->create_date = HFSPLUS_I(HFSPLUS_SB(inode->i_sb).hidden_dir).create_date;

			file->create_date = HFSPLUS_I(sbi->hidden_dir).create_date;

			file->permissions.dev = cpu_to_be32(HFSPLUS_I(inode).dev);

		}

		return sizeof(*file);
@@ -180,15 +182,14 @@ int hfsplus_find_cat(struct super_block *sb, u32 cnid, 


int hfsplus_create_cat(u32 cnid, struct inode *dir, struct qstr *str, struct inode *inode)

{

	struct super_block *sb = dir->i_sb;

	struct hfs_find_data fd;

	struct super_block *sb;

	hfsplus_cat_entry entry;

	int entry_size;

	int err;



	dprint(DBG_CAT_MOD, "create_cat: %s,%u(%d)\n", str->name, cnid, inode->i_nlink);

	sb = dir->i_sb;

	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);

	hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);



	hfsplus_cat_build_key(sb, fd.search_key, cnid, NULL);

	entry_size = hfsplus_fill_cat_thread(sb, &entry, S_ISDIR(inode->i_mode) ?
@@ -234,7 +235,7 @@ int hfsplus_create_cat(u32 cnid, struct inode *dir, struct qstr *str, struct ino 


int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str)

{

	struct super_block *sb;

	struct super_block *sb = dir->i_sb;

	struct hfs_find_data fd;

	struct hfsplus_fork_raw fork;

	struct list_head *pos;
@@ -242,8 +243,7 @@ int hfsplus_delete_cat(u32 cnid, struct inode *dir, struct qstr *str) 
	u16 type;



	dprint(DBG_CAT_MOD, "delete_cat: %s,%u\n", str ? str->name : NULL, cnid);

	sb = dir->i_sb;

	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);

	hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);



	if (!str) {

		int len;
@@ -312,7 +312,7 @@ int hfsplus_rename_cat(u32 cnid, 
		       struct inode *src_dir, struct qstr *src_name,

		       struct inode *dst_dir, struct qstr *dst_name)

{

	struct super_block *sb;

	struct super_block *sb = src_dir->i_sb;

	struct hfs_find_data src_fd, dst_fd;

	hfsplus_cat_entry entry;

	int entry_size, type;
@@ -320,8 +320,7 @@ int hfsplus_rename_cat(u32 cnid, 


	dprint(DBG_CAT_MOD, "rename_cat: %u - %lu,%s - %lu,%s\n", cnid, src_dir->i_ino, src_name->name,

		dst_dir->i_ino, dst_name->name);

	sb = src_dir->i_sb;

	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &src_fd);

	hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &src_fd);

	dst_fd = src_fd;



	/* find the old dir entry and read the data */

fs/hfsplus/dir.c

+21 −19
Original line number Diff line number Diff line
@@ -39,7 +39,7 @@ static struct dentry *hfsplus_lookup(struct inode *dir, struct dentry *dentry, 


	dentry->d_op = &hfsplus_dentry_operations;

	dentry->d_fsdata = NULL;

	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);

	hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);

	hfsplus_cat_build_key(sb, fd.search_key, dir->i_ino, &dentry->d_name);

again:

	err = hfs_brec_read(&fd, &entry, sizeof(entry));
@@ -68,9 +68,9 @@ static struct dentry *hfsplus_lookup(struct inode *dir, struct dentry *dentry, 
		cnid = be32_to_cpu(entry.file.id);

		if (entry.file.user_info.fdType == cpu_to_be32(HFSP_HARDLINK_TYPE) &&

		    entry.file.user_info.fdCreator == cpu_to_be32(HFSP_HFSPLUS_CREATOR) &&

		    (entry.file.create_date == HFSPLUS_I(HFSPLUS_SB(sb).hidden_dir).create_date ||

		    (entry.file.create_date == HFSPLUS_I(HFSPLUS_SB(sb)->hidden_dir).create_date ||

		     entry.file.create_date == HFSPLUS_I(sb->s_root->d_inode).create_date) &&

		    HFSPLUS_SB(sb).hidden_dir) {

		    HFSPLUS_SB(sb)->hidden_dir) {

			struct qstr str;

			char name[32];
@@ -86,7 +86,8 @@ static struct dentry *hfsplus_lookup(struct inode *dir, struct dentry *dentry, 
				linkid = be32_to_cpu(entry.file.permissions.dev);

				str.len = sprintf(name, "iNode%d", linkid);

				str.name = name;

				hfsplus_cat_build_key(sb, fd.search_key, HFSPLUS_SB(sb).hidden_dir->i_ino, &str);

				hfsplus_cat_build_key(sb, fd.search_key,

					HFSPLUS_SB(sb)->hidden_dir->i_ino, &str);

				goto again;

			}

		} else if (!dentry->d_fsdata)
@@ -124,7 +125,7 @@ static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir) 
	if (filp->f_pos >= inode->i_size)

		return 0;



	hfs_find_init(HFSPLUS_SB(sb).cat_tree, &fd);

	hfs_find_init(HFSPLUS_SB(sb)->cat_tree, &fd);

	hfsplus_cat_build_key(sb, fd.search_key, inode->i_ino, NULL);

	err = hfs_brec_find(&fd);

	if (err)
@@ -180,8 +181,9 @@ static int hfsplus_readdir(struct file *filp, void *dirent, filldir_t filldir) 
				err = -EIO;

				goto out;

			}

			if (HFSPLUS_SB(sb).hidden_dir &&

			    HFSPLUS_SB(sb).hidden_dir->i_ino == be32_to_cpu(entry.folder.id))

			if (HFSPLUS_SB(sb)->hidden_dir &&

			    HFSPLUS_SB(sb)->hidden_dir->i_ino ==

					be32_to_cpu(entry.folder.id))

				goto next;

			if (filldir(dirent, strbuf, len, filp->f_pos,

				    be32_to_cpu(entry.folder.id), DT_DIR))
@@ -260,7 +262,7 @@ static int hfsplus_create(struct inode *dir, struct dentry *dentry, int mode, 
static int hfsplus_link(struct dentry *src_dentry, struct inode *dst_dir,

			struct dentry *dst_dentry)

{

	struct super_block *sb = dst_dir->i_sb;

	struct hfsplus_sb_info *sbi = HFSPLUS_SB(dst_dir->i_sb);

	struct inode *inode = src_dentry->d_inode;

	struct inode *src_dir = src_dentry->d_parent->d_inode;

	struct qstr str;
@@ -279,22 +281,22 @@ static int hfsplus_link(struct dentry *src_dentry, struct inode *dst_dir, 
			str.len = sprintf(name, "iNode%d", id);

			res = hfsplus_rename_cat(inode->i_ino,

						 src_dir, &src_dentry->d_name,

						 HFSPLUS_SB(sb).hidden_dir, &str);

						 sbi->hidden_dir, &str);

			if (!res)

				break;

			if (res != -EEXIST)

				return res;

		}

		HFSPLUS_I(inode).dev = id;

		cnid = HFSPLUS_SB(sb).next_cnid++;

		cnid = sbi->next_cnid++;

		src_dentry->d_fsdata = (void *)(unsigned long)cnid;

		res = hfsplus_create_cat(cnid, src_dir, &src_dentry->d_name, inode);

		if (res)

			/* panic? */

			return res;

		HFSPLUS_SB(sb).file_count++;

		sbi->file_count++;

	}

	cnid = HFSPLUS_SB(sb).next_cnid++;

	cnid = sbi->next_cnid++;

	res = hfsplus_create_cat(cnid, dst_dir, &dst_dentry->d_name, inode);

	if (res)

		return res;
@@ -304,15 +306,15 @@ static int hfsplus_link(struct dentry *src_dentry, struct inode *dst_dir, 
	atomic_inc(&inode->i_count);

	inode->i_ctime = CURRENT_TIME_SEC;

	mark_inode_dirty(inode);

	HFSPLUS_SB(sb).file_count++;

	sb->s_dirt = 1;

	sbi->file_count++;

	dst_dir->i_sb->s_dirt = 1;



	return 0;

}



static int hfsplus_unlink(struct inode *dir, struct dentry *dentry)

{

	struct super_block *sb = dir->i_sb;

	struct hfsplus_sb_info *sbi = HFSPLUS_SB(dir->i_sb);

	struct inode *inode = dentry->d_inode;

	struct qstr str;

	char name[32];
@@ -329,7 +331,7 @@ static int hfsplus_unlink(struct inode *dir, struct dentry *dentry) 
		str.len = sprintf(name, "temp%lu", inode->i_ino);

		res = hfsplus_rename_cat(inode->i_ino,

					 dir, &dentry->d_name,

					 HFSPLUS_SB(sb).hidden_dir, &str);

					 sbi->hidden_dir, &str);

		if (!res)

			inode->i_flags |= S_DEAD;

		return res;
@@ -344,10 +346,10 @@ static int hfsplus_unlink(struct inode *dir, struct dentry *dentry) 
		clear_nlink(inode);

	if (!inode->i_nlink) {

		if (inode->i_ino != cnid) {

			HFSPLUS_SB(sb).file_count--;

			sbi->file_count--;

			if (!atomic_read(&HFSPLUS_I(inode).opencnt)) {

				res = hfsplus_delete_cat(inode->i_ino,

							 HFSPLUS_SB(sb).hidden_dir,

							 sbi->hidden_dir,

							 NULL);

				if (!res)

					hfsplus_delete_inode(inode);
@@ -356,7 +358,7 @@ static int hfsplus_unlink(struct inode *dir, struct dentry *dentry) 
		} else

			hfsplus_delete_inode(inode);

	} else

		HFSPLUS_SB(sb).file_count--;

		sbi->file_count--;

	inode->i_ctime = CURRENT_TIME_SEC;

	mark_inode_dirty(inode);

fs/hfsplus/extents.c

+20 −17
Original line number Diff line number Diff line
@@ -108,7 +108,7 @@ void hfsplus_ext_write_extent(struct inode *inode) 
	if (HFSPLUS_I(inode).flags & HFSPLUS_FLG_EXT_DIRTY) {

		struct hfs_find_data fd;



		hfs_find_init(HFSPLUS_SB(inode->i_sb).ext_tree, &fd);

		hfs_find_init(HFSPLUS_SB(inode->i_sb)->ext_tree, &fd);

		__hfsplus_ext_write_extent(inode, &fd);

		hfs_find_exit(&fd);

	}
@@ -162,7 +162,7 @@ static int hfsplus_ext_read_extent(struct inode *inode, u32 block) 
	    block < HFSPLUS_I(inode).cached_start + HFSPLUS_I(inode).cached_blocks)

		return 0;



	hfs_find_init(HFSPLUS_SB(inode->i_sb).ext_tree, &fd);

	hfs_find_init(HFSPLUS_SB(inode->i_sb)->ext_tree, &fd);

	res = __hfsplus_ext_cache_extent(&fd, inode, block);

	hfs_find_exit(&fd);

	return res;
@@ -172,16 +172,15 @@ static int hfsplus_ext_read_extent(struct inode *inode, u32 block) 
int hfsplus_get_block(struct inode *inode, sector_t iblock,

		      struct buffer_head *bh_result, int create)

{

	struct super_block *sb;

	struct super_block *sb = inode->i_sb;

	struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);

	int res = -EIO;

	u32 ablock, dblock, mask;

	int shift;



	sb = inode->i_sb;



	/* Convert inode block to disk allocation block */

	shift = HFSPLUS_SB(sb).alloc_blksz_shift - sb->s_blocksize_bits;

	ablock = iblock >> HFSPLUS_SB(sb).fs_shift;

	shift = sbi->alloc_blksz_shift - sb->s_blocksize_bits;

	ablock = iblock >> sbi->fs_shift;



	if (iblock >= HFSPLUS_I(inode).fs_blocks) {

		if (iblock > HFSPLUS_I(inode).fs_blocks || !create)
@@ -215,8 +214,8 @@ int hfsplus_get_block(struct inode *inode, sector_t iblock, 


done:

	dprint(DBG_EXTENT, "get_block(%lu): %llu - %u\n", inode->i_ino, (long long)iblock, dblock);

	mask = (1 << HFSPLUS_SB(sb).fs_shift) - 1;

	map_bh(bh_result, sb, (dblock << HFSPLUS_SB(sb).fs_shift) + HFSPLUS_SB(sb).blockoffset + (iblock & mask));

	mask = (1 << sbi->fs_shift) - 1;

	map_bh(bh_result, sb, (dblock << sbi->fs_shift) + sbi->blockoffset + (iblock & mask));

	if (create) {

		set_buffer_new(bh_result);

		HFSPLUS_I(inode).phys_size += sb->s_blocksize;
@@ -327,7 +326,7 @@ int hfsplus_free_fork(struct super_block *sb, u32 cnid, struct hfsplus_fork_raw 
	if (total_blocks == blocks)

		return 0;



	hfs_find_init(HFSPLUS_SB(sb).ext_tree, &fd);

	hfs_find_init(HFSPLUS_SB(sb)->ext_tree, &fd);

	do {

		res = __hfsplus_ext_read_extent(&fd, ext_entry, cnid,

						total_blocks, type);
@@ -348,13 +347,16 @@ int hfsplus_free_fork(struct super_block *sb, u32 cnid, struct hfsplus_fork_raw 
int hfsplus_file_extend(struct inode *inode)

{

	struct super_block *sb = inode->i_sb;

	struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);

	u32 start, len, goal;

	int res;



	if (HFSPLUS_SB(sb).alloc_file->i_size * 8 < HFSPLUS_SB(sb).total_blocks - HFSPLUS_SB(sb).free_blocks + 8) {

	if (sbi->alloc_file->i_size * 8 <

	    sbi->total_blocks - sbi->free_blocks + 8) {

		// extend alloc file

		printk(KERN_ERR "hfs: extend alloc file! (%Lu,%u,%u)\n", HFSPLUS_SB(sb).alloc_file->i_size * 8,

			HFSPLUS_SB(sb).total_blocks, HFSPLUS_SB(sb).free_blocks);

		printk(KERN_ERR "hfs: extend alloc file! (%Lu,%u,%u)\n",

				sbi->alloc_file->i_size * 8,

				sbi->total_blocks, sbi->free_blocks);

		return -ENOSPC;

	}
@@ -369,8 +371,8 @@ int hfsplus_file_extend(struct inode *inode) 
	}



	len = HFSPLUS_I(inode).clump_blocks;

	start = hfsplus_block_allocate(sb, HFSPLUS_SB(sb).total_blocks, goal, &len);

	if (start >= HFSPLUS_SB(sb).total_blocks) {

	start = hfsplus_block_allocate(sb, sbi->total_blocks, goal, &len);

	if (start >= sbi->total_blocks) {

		start = hfsplus_block_allocate(sb, goal, 0, &len);

		if (start >= goal) {

			res = -ENOSPC;
@@ -463,13 +465,14 @@ void hfsplus_file_truncate(struct inode *inode) 
	} else if (inode->i_size == HFSPLUS_I(inode).phys_size)

		return;



	blk_cnt = (inode->i_size + HFSPLUS_SB(sb).alloc_blksz - 1) >> HFSPLUS_SB(sb).alloc_blksz_shift;

	blk_cnt = (inode->i_size + HFSPLUS_SB(sb)->alloc_blksz - 1) >>

			HFSPLUS_SB(sb)->alloc_blksz_shift;

	alloc_cnt = HFSPLUS_I(inode).alloc_blocks;

	if (blk_cnt == alloc_cnt)

		goto out;



	mutex_lock(&HFSPLUS_I(inode).extents_lock);

	hfs_find_init(HFSPLUS_SB(sb).ext_tree, &fd);

	hfs_find_init(HFSPLUS_SB(sb)->ext_tree, &fd);

	while (1) {

		if (alloc_cnt == HFSPLUS_I(inode).first_blocks) {

			hfsplus_free_extents(sb, HFSPLUS_I(inode).first_extents,